2000 Chevrolet Blazer Q&A
2000 Chevrolet Blazer Question: Heater Controls
My problem is that the control knob that changes the direction of where the air flow is directed does not work. All of the heat or air condioning is directed from the dash vents, so you are constanly being blasted with hot air in your face and your feet freeze! Also in bad weather I have problems keeping the windshield clean because I do not have the full force of the defroster on the windshield. Is this a big job or is it a simple thing to repair I just spent $750.00 on a new fuel pump so I really can not go into a big expense. thank you Michelle F. - michelle55
Michelle, from the info I have, it looks like the vents are controlled by a vacuum controller. It's possible that the controller has failed, or there is a vacuum leak. Do you hear a hissing noise from the dash area when the engine is running? - Bret Bodas
...ually blows heat,wont change setting to defrost or anything else.Ive tried 3 different in dash heater controls,no change,same problem.Anyone know what the problem is?
Needed a new heater/ac control. Took it to a/c repair place and they rigged it for $150.00; now I got a new heater/ac control and trying to find out what he did, so I can undo it. OR pay $150.00 fo...
The ac works fine and there is no leak in the heater core
The heater and air conditioner fan has gone crazy. It speeds up and slows down all by itself. It switches from heat to air and back all by itself. It also makes a weird grinding noise. What is wro...
not divert to defrost or heat